The Northern Central Railway (NCR), completed to Sunbury in 1858, was a Class 1 railroad that connected Baltimore City, Maryland, to Sunbury, Pennsylvania. In 1861, the Pennsylvania Railroad acquired controlling interest in the railway. It became such a vital transportation link during the Civil War that it had to be guarded constantly by Union forces. In June 1972, Tropical Storm Agnes heavily damaged much of the NCR right-of-way in Pennsylvania...